<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        let obj = {
            name: "张三",
            age: 12
        };
        let value = Reflect.get(obj, 'name'); //obj.name
        console.log(value);
        let age = Reflect.get(obj, 'age'); //abj.age
        console.log(age);

        Reflect.set(obj, 'name', '李四');
        Reflect.set(obj, 'age', 112);
        console.log(obj);
        console.log(obj.name);
    </script>
</body>

</html>